Invesigation of Control System Technologies for Performance Improvement

Abstract

Engineering analysis has been performed to investigate the implementation of a sliding mode controller algorithm that will reduce sensitivity to feedback noise in Control Actuation Systems (CAS) such as those used on Guided MLRS, Low Cost Precision Kill (LCPK), and Compact Kinetic Energy Missile (CKEM). The GFE model of the CAS was used to demonstrate performance enhancement achieved with the sliding mode controller for a variety of potential noise sources. Two types of sliding mode controllers: a two-loop SMC and a single loop SMC have been designed, addressing the servomechanism output tracking problem. Both SMC's demonstrate high accuracy following of load position command profiles. Robustness to disturbances and noise voltage has been demonstrated as well. Both SMC's have been implemented in a relay format and a PWM format The control voltage operates in a high frequency switching mode in both formats. It is recommended to use SMC's in a PWM format, which provides better protection against various noises.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1998
Accession Number
ADA356325

Entities

People

  • Yuri B. Shtessel

Organizations

  • University of Alabama in Huntsville

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Closed Loop Systems
  • Computational Science
  • Control Systems
  • Differential Equations
  • Engineering
  • Equations
  • Feedback
  • Frequency
  • Kinetic Energy
  • Lyapunov Functions
  • Multiple Input Multiple Output
  • Servomechanisms
  • Simulations
  • Steady State
  • Switching
  • Time Intervals

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Control Systems Engineering.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).